- Joined
- Sep 16, 2006
- Messages
- 1,755
- Format
- 35mm
Zeiss.
Do you care to share some details -- or do you prefer to keep us all in the dark?
A tad more expensive.
Zeiss is nice. They make good third party manual focus lenses for a Swedish camera I have heard.
A tad more expensive.
Spiratone 20/2.8 is pretty good
Still buy the lens now because this website runs on GAS.
But try to buy it used! Because if u dont like it, you should be able to not lose anything when you sell.
The CV 21mm f4 - already mentioned - is excellent and tiny.
I have to differ with benjiboy when it comes to the Vivitar 17/3.5. There must be some sample variation
There's something worse than derailing a thread talking about politics. And it is... buying non-OEM superwideangle lenses!!
Yesterday I bought a Pentax SMC Fish-eye 17/4. Only the best for my Pentax LX!!
Really, most super wides require 8 or more lens elements. With this amount of complexity, quality control and mechanical precision needs to be stringent. Any cost-reduction by applying less expensive anti-reflection treatment will impact image. High quality glass (i.e. high refraction index with reasonable dispersion glass) is expensive and will help reach best performance.
I have seen how many off-brand (this includes Vivitar, Sigma) lenses are inside. Instead of lens retaining rings, many glass elements are "sandwiched" together using spacers. This results on inferior mechanical precision. Ostensibly the lens is multicoated while on the inside you find many glass elements with simple coatings (i.e. single layer coating). Where an OEM lens will have at least dual-layer coating on all elements.
All of this has a cost.
You really get what you paid for with super-wide-angles. You can't go wrong with the japanese big four (Canon, Nikon, Pentax, Minolta). Or the german big four (Zeiss, Leitz, Schneider, Rodenstock).
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